significant figures

The number of significant figures of 3.14159 is

• 1

• 5

• 6

• 7

The number of significant figures of 1.00 10^-2 is

• 1

• 3

• 5

• 6

The number of significant figures of 0,10 10³ is

• 1

• 2

• 3

• 4

The number of significant figures of 0,10 10³ is

• 1

• 2

• 3

• 4

Write this number: 9.82916 in 2 s.f.

• 9

• 9.8

• 9.82

• 9.83

Write this number: 7208.51 in 1s.f.

• 0.7 x 10⁴

• 7.0 x 10³

• 7.0 x 10³

Write this number: 30.039 in 4 s.f.

• 30.03

• 30.04

• 30.00

Write this number: 30.039 in 3 s.f.

• 30

• 30.0

• 30.03

• 30.039

Write this number in scientific notation using 3 s.f. : 30.039

• $3.004\times10^1$
  

• $3.00\times10^1$

• 30.03

• 30.039

Write this number in scientific notation using 3 s.f. : 0.789404

•  $7.89\times10^1$ 
  

•  $7.89\times10^{-1}$ 

•  $0.79\times10^1$